best boy
US /ˈbest bɔɪ/
UK /ˈbest bɔɪ/

1.
灯光助理主管, 机械助理主管
the chief assistant to the gaffer (lighting technician) or the key grip (camera and rigging technician) on a film or television set
:
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The best boy made sure all the lighting equipment was ready for the next scene.
灯光助理确保所有灯光设备都为下一场戏准备就绪。
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She started her career as a grip and worked her way up to best boy.
她从灯光师助理开始职业生涯,一路晋升到灯光助理主管。